Combi heat only

Discussion in 'Plumbers' Talk' started by Jeremy85, Oct 10, 2018.

  1. Jeremy85

    Jeremy85 New Member

    Hi all. im putting a system in my workshop offices with 5 rads and an oil boiler. ive planned it for open vent heat only condensing oil boiler as i already have it however ive just been offered a much newer combi that id like. ive never needed to know this so never asked before but can i use the combi for heat only? i dont see why not as no water demand will ever be asked for, but id like to confirm?

    thanks all
  2. kiaora

    kiaora Well-Known Member

    most likely be a pressurized system, just need a filling loop.
    the boiler output, will be for hot water, so heating load will be less.
    basically no problems
  3. The Teach

    The Teach Well-Known Member

    Getting the boiler output correctly sized to the radiator requirement is fairly important,using a combination oil boiler will need some installer adjustment and a means to stop pre heating of the internal heatstore.

    All doable :)
  4. Jeremy85

    Jeremy85 New Member

    many thanks for the reply guys. another plumber has said simply stick a tap on the wall connected for the hot water and open t once a week to keep things good. think i might do that,
  5. The Teach

    The Teach Well-Known Member

    *** :D

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